Combined heating and cooking apparatus



7 (No Model.)

. I. G. RICHARDSON.

COMBINED HEATING AND COOKING APPARATUS. No. 333,672. Patented Jan.5,1886.

[Ki/ messes 3 hz/entor l g Isaac CZZiduuflsozz fl Mm Q 171M UNITEDSTATES PATENT OFFICE.

ISAAC O. RICHARDSON, OF NASHUA, NEW HAMPSHIRE.

COMBINED HEATING AND COOKING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 333,672, dated January5, 1886.

Application filed June 11, 1884. Serial No. 134,544. (No modelJ To aZZwhom it may concern.-

Be it known that I, ISAAC O. RICHARDSON, a citizen of the United States,residing at Nashua, in the county of Hillsborough and State of NewHampshire, have invented certain new and useful Improvements in CombinedHeating and Cooking Apparatus, of which the following is aspecification.

It is the purpose of my invention to provide a simple, safe, andeffective apparatus, whereby the distinct processes of heating andcooking may be carried on either separately or simultaneously and atdifferent points distant from each other and from the point ofgeneration of heat,while at the same time hot water is supplied at athird point having any desired location.

It is also the purpose of my invention to provide such apparatus withmeans whereby the entire available heat generated may be distributedsimultaneously to all the points where it is to be employed, or may bedirected to and concentrated upon any one or more than one of saidpoints.

To these ends, therefore, my invention consists in the combination,with-aheating-boiler, of one or more heating-coils,one or morecooking-coils, and a receiving and returning tank located at anysuitable distance from each other, the tank being connected by areceiving-pipe directly with the boiler and by distributing-pipes withthe coils, the latter having a common return-pipe which discharges intothe boiler near its bottom, whereby, the boiler and pipes being filledwith water, and the tank filled wholly or in part, the generation ofheat beneath the boiler will produce a rapid circulation of hot orboiling water through the tank and coils and back to the boiler, wherethe lost caloric will be supplied.

My invention also consists in the combination, with a heating-boiler anda system of heating-coils or of heating and cooking coils, of a suitabledistributing-tank connecting with each coil or with each system ofcoils, ofsuitable shut-offs or valves, whereby any one or all of saidcoils may be thrown out of the circulation, and the entire availableheat generated within the boiler be directed toward and concentratedupon any one or more than one of said coils less than the entire number,or, if desired,the whole number of coilsbe thrown out and thecirculation maintained between the boiler and the tank only.

My invention also consists in the several novel features of constructionand combinations of parts hereinafter fully described, and definitelypointed out in the claims.

Referring to the drawings forming part of this application, Figure 1 isa view partly in side elevation and partly in vertical sectionillustrating the relative arrangement of the parts. Fig. 2 is ahorizontal section taken through the case of the cooking-coil in a planejust above said coil.

A in said drawings indicates a metallic boiler of any suitable form anddimensions. although it will be found in practice that a small fiatboiler having a fire-surface which is large relatively to its capacitywill be preferable. It may be mounted upon an arch or supported in anyconvenient manner.

B represents a tank, which may be of any suitable material, though metalis to be preferred. It may be located at any desired point, eitherremote from or near to the boiler, as convenience may require. This tankhas an open top, and may be provided witha removable cover, to preventunnecessary loss of heat. It is directly connected with the boiler A bymeans of a pipe, 0, which enters the tank at or near its bottom andopens into the boiler through its top.

D indicates an ordinary radiating-coil such as is used for heatingapartments and similar purposes. This coil is represented in thedrawings as being in close proximity to the tank; but it should be notedthat, within practical limits, it may be placed at any distance from thetank, as well as from the boiler. This coil is supplied from the tankthrough a continuation, a, of its upper branch, which enters said tankthrough its bottom, although it may, if desired, pass through the sideof the tank. A continuation, D, of the lower branch of the coil Dreturns to the boiler A, and enters the same at or near its bottom.

E represents a coil which is adapted forcooking purposes, and which maybe of any desired form and size-such, for example, as that shown,consisting of a horizontally-an ranged series of parallel communicatingbranches, or a flat or ascending spiral or any, other form adapted tothe peculiar circum stances of the case. This coil, which, like theradiating-coil, may be placed at any dis tance from the tank B, isprovided with a surrounding casing, F, upon the floor of which it lies,said casing being provided with a cover, F whereby the cooking-vesselmay be wholly inclosed, the loss of heat prevented, and the escape ofodors avoided. The two extremities of the heating-coil project from oneend of this casing, and are connected with each other by a communicatingpipe. E. The coil is connected to the tank B by a pipe, G, opening fromthe bottom of said tank, and its other extremity is provided with acontinuation, I, which is carried to and tapped into the return pipe D.

In the receiving-branch e of the cooking-coil E, and between the latterand the distributingpipe G, I place a shut-off or valve, 6, and in thecommunicating pipe E, between the pipe G and the return-pipe orcontinuation I, is placed a similar valve. Upon one or the other ofthese valve-stems may be placed a collar,

f, the purpose of which will be presently set forth. As shown in thedrawings, this collar is upon the stem of the valve 6; but it may beplaced upon the stem of the valve e and, finally, while it may provedesirable to employ such a collar, I do not regard it as an essentialand necessary feature of my invention. A third valve, 0 is placed in thereturn-pipe D at any convenient point between the radiating-coil and thepoint where the pipe I is tapped into it.

The tank B may be supplied with a suitable draw-off or faucet, K. Letwater now be poured into the tank Bin sufficient quantities to fill theboiler A, together with the several coils D and E, and to partly orentirely fill said tank. Heat being then applied to the boiler, it isevident that a circulation will be set up, proceeding, primarily, fromthe boiler by way of the pipe 0 to the tank B, thence by the pipe a tothe radiating-coil D, and at the same time to the Cooking coil by way ofpipe G. From both coils the return is made to the boiler by way of pipesD and I, respectively, which unite before reaching the boiler. As theheat rises, this circulation becomes extremely rapid, and by protectingthe conducting-pipes by a non-conducting covering the water may bedelivered at the coils at or nearly at a temperature of 212 Fahrenheit,or even somewhat higher, if necessary.

Let it now be supposed thatv it is necessary to use the cooking-coil Eonly. By closing the valve 6 the radiatingcoil is at once thrown out ofcirculation,while the flow from the boiler to the tank, thence throughthe cooking-coil and back to the boiler, goes on without interruption.In a similar manner, by opening valve 6 and closing valves 6 and 6 thecooking-coil is cut out of the circulation and the whole available heatconcentrated upon the coil D. It will thus be seen that by thisapparatus a great economy of fuel is practicable, and, moreover, theheating and cooking can be carried on at a num ber of distant andseparate points with a small fire without necessity of watching theapparatus constantly, without the slightest danger of explosion, andwith great comparative safety to combustible structures suchas barns andother farm buildings-since the boiler and arch may be placed in acellar, or in a separate Outhouse at a distance, or in any othersuitable locality.

The function of the collar f upon the stern of one of the valves 6 or cis to automatically prevent the entire closing of the valve, leaving apassage, whereby in case all the valves should be carelessly closed atthe same time the boiler shall be supplied with water from the tank asfast as required to supplement the loss by vaporization.

It will be seen that a series of separate coils, either radiating-coilsfor warming apartments or cooking-coils, or even a series of each, caneasily be supplied from a single boiler without in any manner departingfrom my invention.

It will be understood that the function of the valve (2 is to compel acirculation through the cookingcoil E, when it is desired to use thelatter. If this valve were left open, the water would naturally flowfrom the supplypipe G through the valve to the pipe I, and thence to theboiler. By closing the valve, however, the water is compelled totraverse the coil, as will be readily apparent.

By means of the draw-off K, attached to the tank, hot water may at anytime be drawn therefrom in abundance.

Having thus described my invention, what I claim, and desire to secureby Letters Patent of the United States, is-

1. In a combined heating and cooking ap paratus, the combination,with aclosed boiler, of a tank directly connected therewith by a supply-pipe,radiating and cooking circulation-coils located at suitable points andeach supplied from said tank, a return-pipe to the boiler with whicheach coil is connected, and valves whereby any one or all of said coilsmay be cut out of circulation, substantially as and for the purpose setforth.

2. in a combined heating and cooking apparatus, the combination,with aclosed boiler, a supply-tank directly connected therewith, and heatingand cooking coils each connected with said tank and with a return-pipeleading to the boiler, of valves whereby each-coil may be cut outofcirculation, one ofsaid valves having a collar upon its stem, wherebyit is prevented from closing wholly, substantially as and for thepurpose set forth.

3. The combination, with the radiating-coil D and cooking-coil E, eachconnected with the tank B and with the return-pipe D, of the valves '6,c and e, the valve 0 having the collar f, substantially as and for thepurpose described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

ISAAC O. RICHARDSON.

\Vitnesses:

E. B. GOULD, W. A. PEABODY.

IIO

